Skate



Z. SLAWINSKI.

SKATE. APPLICATION FILED OCTIZZ, l9l9.

Patented Julie 8,1920.

zremm'r smwmsxnor rummm, new mnsn.

an-rs.

To all whom it may concern:

Bait known that I, Zrommr Smwmsm,

a citizeri of Poland, residing-at Plainfield,

in the county of Middlesex and State of New Jersey, have invented certain new and useful Improvements in Skates, of which the followingii s a specification.

This inventlon relates to roller and ice I skates, and the like, and has for its object the of the wheels and bearin provision'of novel clamping means for such skates, of novel means for varying the wheelbase of roller skates, and of novel structure thereof, and a proper tool for Kuse therewith.

The above aiidother objects will become.

apparent in the description below, in which characters of reference refer to like-named parts in the drawings.

Referring bri d to the drawings, Figure 1 is a plan view 0 the underside of a roller skate uilt according to' my invention, the wheels thereof being removed.

Fig. 2 is an enlargedvview of the clamp operating mech nism of my device. I

Fig. 3 is a sid elevational view of the rea portion of my rol er skate.

r 1g. 4-is a.-si elevational view of my adjustable mean for varying the wheel base of a skate.

Fig. 5 isa side elevational view of a wheel, the interior being partly exposed, built according to'my invention.

Fig. 6 is a side elevational view of the ball frame of the above view.

Fig. 7 is a front elevational view of the same.

Fig. 8 is a plan view of my novel'tool.

Referring now in detail to the drawings, 1 represents the rear base member of a roller skate; and 2 the forward member thereof. Truck frames, upon which are supported the front and rear wheels, are indicated by areri 'dtot e 8 screw 3, which is provided as shown with- 6 and 7 res tively. Members 10 and 10 undersides of their respective base members, an'dare provided with threaded holes for the reception of the cylindacal lock nuts 8, 8?, and 9.

The customary clamps 4 are guided by pins 5 projectmg through said clamps, and

- are further constrained to lo 'tudinal mobase 2. Acurved 7 to one of said clamps 4,

ball d14 on y m 7 mldnpivotally connected at ts other end to a '12, which in turn is pivotally tion by .the o'verlfiplpig lpecilcation of utter: Patent. Application fled mm as, 1910. semi Io. mp1.

.upon the axle of the wheels to retain themconnected-to another link Patented June 8, 1920.

An upwardly projecting handle or kno is provided at the free end of said lever, and

a spring 16 is attached to said lever as shown the other end thereof being attached to the.

base 2. A spring 13 is attached at one end to the common int between the left-hand clamp 4 and the ink 43, and at the other end to the support 7; this spring is broken in Fig. 2 so as to allow the illustration of the clamp operating mechanism when the clamps are both in open and closed positions.

The operation of this device is simple, and is readily illustrated in Fig. 2. By motion of the lever 42 to the right, the clamps are separated, and on release of the lever 42 the sprin 13 and 16 cause the clam s to close against the shoe of the wearer o the skate.

To lengthen or shorten the wheel base of the skate, it is necessary slmply to grip one of the members 1 or 2 in one hand, and retate the other until the desired length is of balls 29 of hard steel. These balls are free to rotate therein, and the frame 28 is of a width about two-thirds of the diameter of said balls, so that when they. are in their recesses, about one-sixth each, ball,'projects both above and below said frame, as clearly illustrated in Fig. 5

The upper portlo'n of said balls thus contacts with the inner periphery of the rim 25, and the lower portion with the inner surface of the enlargement 26 of the hub 27. When the wheel is in flat IlIIlOl' washer 21 ts over the exposed balls and frame 28. A nut '46 is screwed thereon. a

F 3 illustrates my means for fastening the 7 ate to the rearof the shoe. A brace or support 40 ismounted rigidly to the underside of the base 1, its ends upward and having ivoted thereto a air of metal reinforci games 22, at 41. band or cover of lea er or the like 20 is rigid 160 place on the skate, a I

about said members 22, and' a strap 2% haying a fastening buckle 23 is secured to s'ald band, for the purpose of binding the same V about the shoe.

My tool is-indica-ted in Fig. 8, wherein 35 represents the handle, and 36 the metal frame, the'forward end 47 of which is of a thickness slightly. less than the width of the opening 3 on the end of the screw 3, sothat the former may be used to, turn the latter. A recess 37 therein is of a semi-periphery, slightly larger than that of the nuts 8, 8, and 9, so that the former may be adjusted about any of the latter to turn the same. Similarly the recess 38 is adjustable about the nuts 46.

Having thus described my invention, what I claimv and desire to secure by Letters Patent is as follows: v

1. In a device of the class described, front and rear members having means to support wheels thereon, means for varying the wheel .base of the device comprising a screw having pivotal support in said members, lock nuts therefor, and rocking-lever "actuated clamping means therefor. i

2. In a device of the class described, front and rear members, means for adjusting the wheel base of the device, and clamping means therefor comprising a .pair of clamps slidably mounted on the underside of said forward member, a lever pivotally secured to one of said clamps, links connecting said lever to the other of said clamps, and spring meansto retract said clamps after they have been separated.

3. In a devlce oft he class described, front andrear members, clamps on the front mem-' ber slidable' in pins thereon, a lever pivoted to one of said clamps, a handleon one end of said lever, a sprlng connectin said lever with said front member, a plura ity of links connecting said lever with said other clamp, a second spring connecting said last-named clamp with sald front member, and guides for said clamps. In testimony whereof I aflixm si ZIGMU NT sLgllil nature.

SKI. 

